<?php

/*
	Question2Answer (c) Gideon Greenspan

	http://www.question2answer.org/

	
	File: qa-include/qa-page-feedback.php
	Version: See define()s at top of qa-include/qa-base.php
	Description: Controller for feedback page


	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	More about this license: http://www.question2answer.org/license.php
*/

if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
    header('Location: ../');
    exit;
}

require_once QA_INCLUDE_DIR . 'qa-app-captcha.php';
require_once QA_INCLUDE_DIR . 'qa-db-selects.php';


//	Get useful information on the logged in user

$userid = qa_get_logged_in_userid();

if (isset($userid) && !QA_FINAL_EXTERNAL_USERS)
    list($useraccount, $userprofile) = qa_db_select_with_pending(
        qa_db_user_account_selectspec($userid, true),
        qa_db_user_profile_selectspec($userid, true)
    );

$usecaptcha = qa_opt('captcha_on_feedback') && qa_user_use_captcha();


//	Check feedback is enabled and the person isn't blocked

if (!qa_opt('feedback_enabled'))
    return include QA_INCLUDE_DIR . 'qa-page-not-found.php';

if (qa_user_permit_error()) {
    $qa_content = qa_content_prepare();
    $qa_content['error'] = qa_lang_html('users/no_permission');
    return $qa_content;
}


//	Send the feedback form

$feedbacksent = false;

if (qa_clicked('dofeedback')) {
    require_once QA_INCLUDE_DIR . 'qa-app-emails.php';
    require_once QA_INCLUDE_DIR . 'qa-util-string.php';

    $inmessage = qa_post_text('message');
    $inname = qa_post_text('name');
    $inemail = qa_post_text('email');
    $inreferer = qa_post_text('referer');

    if (!qa_check_form_security_code('feedback', qa_post_text('code')))
        $pageerror = qa_lang_html('misc/form_security_again');

    else {
        if (empty($inmessage))
            $errors['message'] = qa_lang('misc/feedback_empty');

        if ($usecaptcha)
            qa_captcha_validate_post($errors);

        if (empty($errors)) {
            $subs = array(
                '^message' => $inmessage,
                '^name' => empty($inname) ? '-' : $inname,
                '^email' => empty($inemail) ? '-' : $inemail,
                '^previous' => empty($inreferer) ? '-' : $inreferer,
                '^url' => isset($userid) ? qa_path_absolute('user/' . qa_get_logged_in_handle()) : '-',
                '^ip' => qa_remote_ip_address(),
                '^browser' => @$_SERVER['HTTP_USER_AGENT'],
            );

            if (qa_send_email(array(
                'fromemail' => qa_email_validate(@$inemail) ? $inemail : qa_opt('from_email'),
                'fromname' => $inname,
                'toemail' => qa_opt('feedback_email'),
                'toname' => qa_opt('site_title'),
                'subject' => qa_lang_sub('emails/feedback_subject', qa_opt('site_title')),
                'body' => strtr(qa_lang('emails/feedback_body'), $subs),
                'html' => false,
            ))
            )
                $feedbacksent = true;
            else
                $pageerror = qa_lang_html('main/general_error');

            qa_report_event('feedback', $userid, qa_get_logged_in_handle(), qa_cookie_get(), array(
                'email' => $inemail,
                'name' => $inname,
                'message' => $inmessage,
                'previous' => $inreferer,
                'browser' => @$_SERVER['HTTP_USER_AGENT'],
            ));
        }
    }
}


//	Prepare content for theme

$qa_content = qa_content_prepare();

$qa_content['title'] = qa_lang_html('misc/feedback_title');

$qa_content['error'] = @$pageerror;

$qa_content['form'] = array(
    'tags' => 'method="post" action="' . qa_self_html() . '"',

    'style' => 'tall',

    'fields' => array(
        'message' => array(
            'type' => $feedbacksent ? 'static' : '',
            'label' => qa_lang_html_sub('misc/feedback_message', qa_opt('site_title')),
            'tags' => 'name="message" id="message"',
            'value' => qa_html(@$inmessage),
            'rows' => 8,
            'error' => qa_html(@$errors['message']),
        ),

        'name' => array(
            'type' => $feedbacksent ? 'static' : '',
            'label' => qa_lang_html('misc/feedback_name'),
            'tags' => 'name="name"',
            'value' => qa_html(isset($inname) ? $inname : @$userprofile['name']),
        ),

        'email' => array(
            'type' => $feedbacksent ? 'static' : '',
            'label' => qa_lang_html('misc/feedback_email'),
            'tags' => 'name="email"',
            'value' => qa_html(isset($inemail) ? $inemail : qa_get_logged_in_email()),
            'note' => $feedbacksent ? null : qa_opt('email_privacy'),
        ),
    ),

    'buttons' => array(
        'send' => array(
            'label' => qa_lang_html('main/send_button'),
        ),
    ),

    'hidden' => array(
        'dofeedback' => '1',
        'code' => qa_get_form_security_code('feedback'),
        'referer' => qa_html(isset($inreferer) ? $inreferer : @$_SERVER['HTTP_REFERER']),
    ),
);

if ($usecaptcha && !$feedbacksent)
    qa_set_up_captcha_field($qa_content, $qa_content['form']['fields'], @$errors);


$qa_content['focusid'] = 'message';

if ($feedbacksent) {
    $qa_content['form']['ok'] = qa_lang_html('misc/feedback_sent');
    unset($qa_content['form']['buttons']);
}


return $qa_content;


/*
	Omit PHP closing tag to help avoid accidental output
*/